1566488064 has 40 divisors (see below), whose sum is σ = 4173226200. Its totient is φ = 522162176.

The previous prime is 1566488059. The next prime is 1566488081. The reversal of 1566488064 is 4608846651.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508389 + ... + 511460.

It is an arithmetic number, because the mean of its divisors is an integer number (104330655).

Almost surely, 2^1566488064 is an apocalyptic number.

It is an amenable number.

1566488064 is an abundant number, since it is smaller than the sum of its proper divisors (2606738136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1566488064 is an equidigital number, since it uses as much as digits as its factorization.

1566488064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019870 (or 1019854 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The square root of 1566488064 is about 39578.8840671386. The cubic root of 1566488064 is about 1161.3836204963.

The spelling of 1566488064 in words is "one billion, five hundred sixty-six million, four hundred eighty-eight thousand, sixty-four".